Hair hat



FIG. 1 is a front perspective view of a hair hat showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front perspective view of a second embodiment of a hair hat showing my new design;

FIG. 5 is a rear perspective view thereof; and,

FIG. 6 is a top plan view thereof. 

The ornamental design for a hair hat, as shown and described. 